Currently, we are instantiating Tim Berners-Lee's vision of linked government data via the following activities: translating government datasets into RDF, linking them to the linked data cloud, and developing interesting applications and demos on semantically linked government data.

Here's a diagram displaying the semantic web architecture for government data.

Datasets from data.gov were translated from CSV to RDF using a simple Java program. Other datasets in different formats will be translated soon. For more information as to how the data was translated and how it is currently formatted please see Generating_RDF_from_data.gov.

This demo uses Dataset_402, Public Budget Database - Outlays and offsetting receipts 1962-2014 (Office_of_Management_and_Budget), to show accounts that belong to that bureau and their outlays (expenditures) for each year from 1962 to 2014 (2009-2014 are projected values).

This demo uses Dataset_34, Worldwide M1+ Earthquakes, Past 7 Days (US_Geological_Survey), to earthquakes all around the world in the past week. This Demo takes advantage of Exhibit's faceted browsing capabilities.

For more Demos and Information:

For the main entry page to the Data-gov Wiki and more information on the technical details of this project, please visit [1].

Topic pages for Government Data properties

For each data set in our catalog, there is a metadata page available in both human and machine-readable (RDF) forms that provides both information about that dataset and the properties it uses. Each property referenced in any of the datasets we have translated gets a wiki page in which we show all datasets that use that property, and in which it is possible to add either textual as to the meaning of those propoerties or machine-readable assertions as to how the properties may be linked. The wiki page Property:Dgtwc:uses_property has a list of all of these properties, from which those knowledgable in a dataset can make assertions as to these meanings and uses.